bbc/simorgh

const getMetaTagContent = selector =>
  document.querySelector(selector).getAttribute('content');

export default () => {
  describe('SEO', () => {
    it('Page title', () => {
      const pageTitleEl = document.querySelector('title');

      expect(pageTitleEl).toBeInTheDocument();
      expect(pageTitleEl.textContent).toBeTruthy();
      expect(pageTitleEl.textContent).toMatchSnapshot();
    });

    it('Heading level 1', () => {
      const headingEl = document.querySelector('h1');

      expect(headingEl).toBeInTheDocument();
      expect(headingEl.textContent).toBeTruthy();
      expect(headingEl.textContent).toMatchSnapshot();
    });

    it('Canonical link', () => {
      const canonicalEl = document.querySelector('head link[rel="canonical"]');

      expect(canonicalEl.getAttribute('href')).toMatchSnapshot();
    });

    it('Robots meta tag', () => {
      const robotsEl = document.querySelector('head meta[name="robots"]');
      const robotsContent = robotsEl.getAttribute('content');

      expect(robotsContent).toMatchSnapshot();
    });

    it('Lang attribute', () => {
      const htmlEl = document.querySelector('html');

      expect(htmlEl.getAttribute('lang')).toMatchSnapshot();
    });

    it('Dir attribute', () => {
      const htmlEl = document.querySelector('html');

      expect(htmlEl.getAttribute('dir')).toMatchSnapshot();
    });

    it('FB app ID', () => {
      const metaTagContent = getMetaTagContent('meta[property="fb:app_id"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG image', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:image"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG image alt', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:image:alt"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG locale', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:locale"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG type', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:type"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG url', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:url"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG site name', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:site_name"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter card', () => {
      const metaTagContent = getMetaTagContent('meta[name="twitter:card"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter creator', () => {
      const metaTagContent = getMetaTagContent('meta[name="twitter:creator"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter image alt', () => {
      const metaTagContent = getMetaTagContent(
        'meta[name="twitter:image:alt"]',
      );

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter image src', () => {
      const metaTagContent = getMetaTagContent(
        'meta[name="twitter:image:src"]',
      );

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter site', () => {
      const metaTagContent = getMetaTagContent('meta[name="twitter:site"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG description', () => {
      const metaTagContent = getMetaTagContent(
        'meta[property="og:description"]',
      );

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('OG title', () => {
      const metaTagContent = getMetaTagContent('meta[property="og:title"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter description', () => {
      const metaTagContent = getMetaTagContent(
        'meta[name="twitter:description"]',
      );

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    it('Twitter title', () => {
      const metaTagContent = getMetaTagContent('meta[name="twitter:title"]');

      expect(metaTagContent).toBeTruthy();
      expect(metaTagContent).toMatchSnapshot();
    });

    describe('Linked data', () => {
      const schemaScripts = document.querySelectorAll(
        'head > script[type="application/ld+json"]',
      );

      schemaScripts.forEach(script => {
        const scriptContent = JSON.parse(script.textContent);

        it('should be in the document', () => {
          expect(script).toBeInTheDocument();
        });

        it('should contain text', () => {
          expect(scriptContent).toBeTruthy();
        });

        it(`should match text`, () => {
          expect(scriptContent).toMatchSnapshot();
        });
      });
    });

    describe('Apple Touch Icon', () => {
      const touchIconScript = document.querySelectorAll(
        'head > link[rel="apple-touch-icon"]',
      );

      touchIconScript.forEach(script => {
        const url = script.getAttribute('href');
        const sizes = script.getAttribute('sizes');

        it('should be in the document', () => {
          expect(script).toBeInTheDocument();
        });

        it(`should match attributes`, () => {
          expect({
            url,
            sizes,
          }).toMatchSnapshot();
        });
      });
    });
  });
};